Pressure testing tool
By designing pressure testing tooling, including a pressure tank, controller, oil-gas separation device and oil storage tank, the problem of sealing and performance verification after compressor assembly was solved, simple testing and lubricating oil recovery were achieved, and environmental pollution and costs were reduced.
Patent Information
- Application Number
- CN202422467048.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-12
AI Technical Summary
In the prior art, there is a lack of effective pressure testing methods after the compressor is assembled, which makes it difficult to verify the sealing and performance of the compressor.
A pressure testing tooling was designed, which included a pressure tank, a controller, a pressure sensor, an oil-gas separation device and an oil storage tank. The pressure sensor was used to monitor the air pressure in real time and control the operation of the compressor. Combined with the multi-stage oil-gas separation and support frame structure, simple pressure testing and lubricating oil recovery were achieved.
It realizes simple pressure testing of the compressor, ensures sealing and performance verification, reduces environmental pollution and testing costs, and improves testing efficiency and environmental protection.
Smart Images
Figure CN223361698U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure testing, in particular to a tool for performing pressure testing on a compressor. Background Art
[0002] After the compressor is assembled, it needs to be pressure tested to verify whether the compressor is qualified. Utility Model Content
[0003] To achieve pressure testing of a compressor, the present invention proposes a pressure testing fixture, which includes a pressure tank and a controller. The pressure tank is provided with a pressure gauge and a pressure sensor, the pressure sensor being electrically connected to the controller, and the air inlet of the pressure tank being connected to an air inlet pipe. When the pressure testing fixture of the present invention is used to test a compressor, the high-pressure outlet of the compressor is connected to the air inlet pipe, and the power port of the compressor is connected to the controller. During the test, the compressor is started to produce compressed air and delivered to the pressure tank through the air inlet pipe. When the pressure sensor detects that the air pressure in the pressure tank reaches a set value, the pressure sensor sends a signal to the controller to control the compressor to stop working. The pressure sensor monitors the air pressure in the pressure tank in real time. Within a set time t1, when the air pressure P0 in the pressure tank is greater than or equal to a preset value P1, the compressor is considered to meet the design requirements for sealing and performance, i.e., qualified. When the air pressure P0 in the pressure tank is less than the preset value P1, the compressor is considered to fail the design requirements for sealing and performance. It can be seen that the pressure test of the compressor is carried out simply and conveniently by using the pressure test tool of the utility model.
[0004] Preferably, the pressure testing fixture includes an oil-gas separation device and an oil storage tank. The air inlet end of the oil-gas separation device is connected to the exhaust port of the pressure tank via an exhaust pipe, and the oil discharge end of the oil-gas separation device is connected to the oil storage tank via an oil discharge pipe. Thus, by providing the oil-gas separation device and the oil storage tank in the pressure testing fixture of the present invention, the oil-gas separation device can be used to separate the oil and gas in the compressed air discharged from the pressure tank, and the separated lubricating oil can be stored in the oil storage tank. This can not only prevent the compressed air from being directly discharged into the air and polluting the environment, but also recover the lubricating oil for secondary use, thereby reducing testing costs.
[0005] Preferably, the oil-gas separation device includes a primary oil-gas separator and a secondary oil-gas separator, with the air inlet of the secondary oil-gas separator communicating with the air outlet of the primary oil-gas separator. This utilizes a two-stage oil-gas separator to separate oil and gas from compressed air, further improving the oil-gas separation efficiency and reducing environmental pollution caused by the discharge of compressed air into the atmosphere. Furthermore, a first oil discharge control valve is provided at the oil discharge port of the primary oil-gas separator, and a second oil discharge control valve is provided at the oil discharge port of the secondary oil-gas separator. Thus, while the oil-gas separation device is separating oil and gas from compressed air, the first and second oil discharge control valves can be opened as needed to discharge accumulated lubricating oil from the primary and secondary oil-gas separators and transfer it to an oil storage tank, facilitating control. Furthermore, preferably, both the first and second oil discharge control valves are solenoid valves. Using solenoid valves as the first and second oil discharge control valves facilitates selection and control.
[0006] Preferably, a pressure relief valve is provided on the exhaust pipe, and the pressure relief valve is close to the air inlet end of the oil-gas separation device. In this way, after the test is completed, the pressure relief valve can be used to release the pressure, allowing the compressed air in the pressure tank to flow into the oil-gas separation device for oil-gas separation.
[0007] Preferably, the controller is an LPC controller and the pressure sensor is a PLC sensor. Thus, using the LPC controller as the controller and the PLC sensor as the pressure sensor facilitates the controller to control the compressor on and off based on the real-time detection results of the pressure sensor, making test control simple and convenient.
[0008] Preferably, the pressure testing tool includes a support frame, which is provided with a bottom frame, a middle frame, and a top frame. The oil storage tank is installed on the bottom frame, the pressure tank and the inspection station are provided on the middle frame, and the controller is arranged on the top frame. In this way, the support frame is provided for arranging the pressure tank, oil storage tank, inspection station, and controller in the pressure testing tool of the present invention. The pressure tank and the inspection station are located on the middle frame, which is convenient for testers to disassemble and assemble the compressor at the inspection station and to read the pressure gauge on the pressure tank in a timely manner. The oil storage tank is installed on the bottom frame, which is convenient for assemblers to connect the exhaust pipe to the exhaust port at the bottom of the pressure tank. The oil storage tank can also be used as a counterweight and arranged at the bottom of the support frame to prevent the support frame from being unstable due to being top-heavy. The controller is arranged on the top frame, which is convenient for testers to perform control operations and can prevent leaked oil and gas from contaminating the controller and affecting the service life of the controller. Furthermore, the bottom of the support frame is provided with movable wheels. In this way, the tester can push the support frame to move the pressure testing tool of the utility model according to the need, and the movement is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of the pressure testing tool of the utility model from a first perspective;
[0010] Figure 2 This is a schematic structural diagram of the pressure testing tooling of the utility model from a second perspective. DETAILED DESCRIPTION
[0011] Next, combine Figure 1 and 2 , the pressure testing tooling of the utility model is described in detail.
[0012] like Figure 1 and 2 As shown, the pressure test fixture of the present invention includes a pressure tank 1 and a controller 2. The pressure tank 1 is provided with a pressure gauge 11 and a pressure sensor 12. The pressure sensor 12 is electrically connected to the controller 11. The air inlet of the pressure tank 1 is connected to an air inlet pipe 13. When using the pressure test fixture of the present invention to test the compressor 3, the high-pressure outlet of the compressor 3 is connected to the air inlet pipe 13, and the power port 31 of the compressor 3 is connected to the controller 2. During the test, the compressor 3 is started to produce compressed air, which is then delivered to the pressure tank 1 through the air intake pipe 13. When the pressure sensor 12 detects that the air pressure in the pressure tank 1 has reached a set value, the pressure sensor 12 sends a signal to the controller 2 to stop the compressor 3. The pressure sensor 12 monitors the air pressure in the pressure tank 1 in real time. Within a set time t1, when the air pressure P0 in the pressure tank 1 is greater than or equal to the preset value P1, the compressor 3 is considered to have met the design requirements for sealing and performance, i.e., qualified. When the air pressure P0 in the pressure tank 1 is less than the preset value P1, the compressor 3 is considered to have failed the design requirements for sealing and performance. Thus, using the pressure test fixture of the present invention to perform pressure testing on a compressor is simple and convenient. Preferably, the controller 2 is an LPC controller, and the pressure sensor 12 is a PLC sensor. Thus, using the LPC controller as the controller 2 and the PLC sensor as the pressure sensor 12 facilitates the controller 2 to control the opening and closing of the compressor 3 based on the real-time detection results of the pressure sensor 12, making the test control simple and convenient.
[0013] like Figure 1 and 2As shown, the pressure testing fixture of the present invention also includes an oil-gas separation device and an oil storage tank 5. The air inlet of the oil-gas separation device is connected to the exhaust port of the pressure tank 1 via an exhaust pipe 14, and the oil discharge end of the oil-gas separation device is connected to the oil storage tank 5 via an oil discharge pipe 6. Thus, by providing the oil-gas separation device and the oil storage tank 5 in the pressure testing fixture of the present invention, the oil-gas separation device can be used to separate the oil and gas in the compressed air discharged from the pressure tank 1, and the separated lubricating oil can be stored in the oil storage tank 5. This not only prevents the compressed air from being directly discharged into the air and polluting the environment, but also allows the lubricating oil to be recovered for secondary use, reducing testing costs. Preferably, the oil-gas separation device includes a primary oil-gas separator 41 and a secondary oil-gas separator 42, with the air inlet of the secondary oil-gas separator 42 connected to the air outlet of the primary oil-gas separator 41. Thus, using a two-stage oil-gas separator to separate the oil and gas in the compressed air can further improve the oil-gas separation effect and reduce the environmental pollution caused by the compressed air being discharged into the air. Preferably, a first oil discharge control valve 43 is provided at the oil discharge port of the first-stage oil-gas separator 41, and a second oil discharge control valve 44 is provided at the oil discharge port of the second-stage oil-gas separator 42. This allows the first and second oil discharge control valves 43 and 44 to be opened as needed to discharge the lubricating oil accumulated in the first-stage oil-gas separator 41 and the second-stage oil-gas separator 42 and transfer it to the oil storage tank 5, facilitating control. Preferably, both the first and second oil discharge control valves 43 and 44 are solenoid valves. Using solenoid valves as the first and second oil discharge control valves 43 and 44 is simple and easy to control. Preferably, a pressure relief valve 7 is provided on the exhaust pipe 14, located near the air inlet of the oil-gas separator. After testing, the pressure relief valve 7 can be used to relieve pressure, allowing the compressed air in the pressure tank 1 to flow into the oil-gas separator for oil-gas separation.
[0014] like Figure 1 and 2As shown, the pressure test tool of the present invention further includes a support frame 8, which is provided with a bottom frame 81, a middle frame 82, and a high frame 83. The oil storage tank 5 is installed on the bottom frame 81, the pressure tank 1 and the detection station are arranged on the middle frame 82, and the controller 2 is arranged on the high frame 83. In this way, the support frame 8 is provided for arranging the pressure tank 1, the oil storage tank 5, the detection station, and the controller 2 in the pressure test tool of the present invention. Among them, the pressure tank 1 and the detection station are located on the middle frame, which is convenient for the tester to disassemble and assemble the compressor 3 at the detection station and to read the pressure gauge reading on the pressure tank 1 in a timely manner; the oil storage tank 5 is installed on the bottom frame 81, which is convenient for the assembler to connect the exhaust pipe 14 to the exhaust port at the bottom of the pressure tank 1. The oil storage tank 5 can also be used as a counterweight to be arranged at the bottom of the support frame 8 to prevent the support frame 8 from being unstable due to being top-heavy; the controller 2 is arranged on the high frame 83, which is convenient for the tester to perform control operations and can prevent leaked oil and gas from contaminating the controller 2 and affecting the service life of the controller 2. Preferably, the bottom of the support frame 8 is provided with movable wheels 84. This allows the tester to push the support frame 8 to move the pressure test fixture of the utility model as needed, making movement simple and convenient. Preferably, the movable wheels 84 are universal wheels with brakes. This not only facilitates the movement of the pressure test fixture of the utility model, but also allows the movable wheels 84 to be braked once the pressure test fixture reaches a predetermined position, preventing the pressure test fixture from shifting during testing and affecting test efficiency.
Claims
1. A pressure testing tool, characterized in that: The pressure testing tool comprises a pressure tank and a controller. The pressure tank is provided with a pressure gauge and a pressure sensor. The pressure sensor is electrically connected to the controller. The air inlet of the pressure tank is connected to an air inlet pipe.
2. The pressure testing tool according to claim 1 is characterized in that the pressure testing tool includes an oil-gas separation device and an oil storage tank, the air inlet end of the oil-gas separation device is connected to the exhaust port of the pressure tank through an exhaust pipe, and the oil discharge end of the oil-gas separation device is connected to the oil storage tank through an oil discharge pipe.
3. The pressure testing tool according to claim 2, characterized in that: The oil-gas separation device includes a primary oil-gas separator and a secondary oil-gas separator, and the air inlet of the secondary oil-gas separator is communicated with the air outlet of the primary oil-gas separator.
4. The pressure testing tool according to claim 3, characterized in that: The oil discharge port of the first-stage oil-gas separator is provided with a first oil discharge control valve, and the oil discharge port of the second-stage oil-gas separator is provided with a second oil discharge control valve.
5. The pressure testing tool according to claim 4, characterized in that: The first oil discharge control valve and the second oil discharge control valve are both solenoid valves.
6. The pressure testing tool according to claim 2, characterized in that: The exhaust pipe is provided with a pressure relief valve, and the pressure relief valve is close to the air inlet end of the oil-gas separation device.
7. The pressure testing tool according to any one of claims 1 to 6, characterized in that: The controller is an LPC controller, and the pressure sensor is a PLC sensor.
8. The pressure testing tool according to any one of claims 2 to 6, characterized in that: The pressure testing tooling includes a support frame, which is provided with a bottom frame, a middle frame and a high frame. The oil storage tank is installed on the bottom frame, the pressure tank and the detection station are arranged on the middle frame, and the controller is arranged on the high frame.
9. The pressure testing tool according to claim 8, characterized in that: The bottom of the support frame is provided with moving wheels.